Pliers



April 26, 1932- F. P. DELACOUR 1,855,944

PLIERS Filed Sept. 4, 1950 Patented Apr. 26, 1932 UNITED STATES PATENT OFFICE PLIERS Application filed September 4, 1930, Serial No. 479,737, and in Great Britain March 28, 1930.

This invention relates to improvements in pliers, the object of the invention being to provide an improved form of pliers whereby loops of different sizes can easily and accurately be formed in wire, so that the loops accurately over terminal screws and the 1 e.

According to the present invention each of the jaws of the pliers is stepped, each step being of circular section and the sections increasing in diameter from the point of the jaw towards the rear; furthermore, the stepped sections of each of the jaws are not only of different diameters, but the sections of one 16 jaw are of different diameters than the sections of its corresponding opposite jaw. A pair of pliers so constructed will form a consideraly greater number of loops than one in which each jaw is identical. All the circu- 20 lar sections have their peripheries, on the side towards the other jaw of the pliers, at the same level, so that the other edge of the pliers, will grip a wire between it and one or other of the steps of the aw first described.

The diameters of the several steps are chosen to correspond with different standard wire gauges, or preferably slightly larger than these, so that a loop in a wire made by bending the wire round one or other of the 80 steps will fit easily but closely over a terminal pin or other connecting device such as commonly used in electrical apparatus.

In the accompanying drawings:

Figure 1 is a side elevation of a pair of pliers embodying my invention.

Figure 2 is an edge view thereof.

Figure 3 is an end View of the pliers shown in Figure 1, and

Figure 4 is an enlarged fragmentary view of the jaw portions shown in Figure 1.

Referring now to the drawings, there is illustrated a pair of hand-pliers pivoted at P, wherein the jaws A and C are stepped at 1, 2, 3 and 4, each step being of circular section; the smaller section 1 of each jaw being at the point of the jaw and the sections 2, 3 and 4 increasing in diameter towards the pivot P. Furthermore, the peripheries of the sections of each diameter face one another on the center lines a and 6, common to both jaws A and C.

The stepped sections 1 to 4 of each of the jaws A and C are not only of different diameters, but the sections of one jaw are of different diameters than the sections of its corresponding opposite jaw. Thus section 1 of jaw A is smaller in diameter than its corresponding section 1 of aw C, and this is true of each succeeding pair of sections. With such an arrangement it will be apparent that I have provided a pair of pliers whereby a maximum number of loops may be formed.

Instead of the diameters of the stepped circular portions corresponding to standard gauge dimensions they may, of course, be determined according to a metric system.

I claim:

1. Improved pliers comprising two cooperating jaws, each of said jaws being formed in stepped sections of different diameters, and the sections of one jaw being of different diameters than the sections of the other aw.

2. Improved pliers comprising two cooperating oppositely disposed jaws formed in stepped sections of different diameters, and the opposite corresponding sections being of different diameters.

In testimony whereof I have signed my name to this specification.

FRANK PHILIP DELACO UR. 

